An assembly line is to operate 8 hours a day with a desired daily output of 240 units. The following table contains information on this product’s task times and sequential relationships

An assembly line is to operate 8 hours a day with a desired daily output of 240 units. The following table contains information on this product’s task times and sequential relationships

An assembly line is to operate 8 hours a day
with a desired daily output of 240 units. The following table contains
information on this product’s task times and sequential relationships:

Task

Task Time
(seconds)

Immediate
Predecessor

A

40

—–

B

30

A

C

20

A

D

50

B

E

60

D

F

20

C

G

40

E, F

H

50

G

Please
answer the following questions based on the information given.

(a)
Specify
the sequential relationships among the tasks using a diagram. An example can be
found on the lecture slides for Week 5. Please
include all the tasks, arrows, and task times in the diagram for full credit.
(10 points)

(b) What is the required workstation cycle time in
this case? Please include the formula,
at least one step of calculation, and the correct answer for full credit. (6
points)

(c) Suppose the application of some
primary and secondary assignment rules suggests the following task assignment
sequence: A, B, D, C, E, F, G, H.That
is, Task A will be the first task to assign to a workstation, followed by Task
B, Task D, and all the way to Task H. Then which tasks are assigned to each
workstation? Label the workstations as Workstation 1, Workstation 2, and so on.
Please list the workstation assignment of each task for full credit. (16 points)

(d)
What
is the efficiency of your design? Please
include the formula, at least one step of calculation, and the correct answer
for full credit. (6 points)

(e) Is the efficiency satisfactory and why? This is an open question. (2 points)


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